In chimneys



A. WILHELMS.

y Chimney Cowl.

No.' 84,600. Patented Dec. 1,1868.

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.Nv PETERS, PliOmLl'rHoGRAPuER. wAsmNCToN D c AUGUST WILHELMS, OF ST. PETERSBURQRUSSIA.

Leners 'Peteur Ne. s4,coo, ezeteez Deeembee 1 186s.'

The Schedule referred to in these Letters Patent and making part of the same.

To all lwhom. it may concern:

Beiit known that lI, AUGUST WILHELMs, a citizen.

ment in chimneys, for the purpose of causing smoke to' be consumed in furnaces or lire-chambers, the invention being applicable to stationary chimneys, or those which are attach edto fixed buildings, as well as to those which are attached to steamboats, locomotives, Sto. v

In the accompanying sheet of' drawings- Figure l isa vertical central section of my invention.

Figure 2, a horizontal section of the same, taken in the line a: fig. 1.

-Figure 3, a horizontal section of the same, taken in the line yy, fig. l.

parts.

The chimney maybe of masonry, or constructed of' iron plates, up to what I teun the rectificator,A, which should be of' iron plates, the centra-l portion, a, being of' cylindrical form, the upper part, b, of conical form, and the lower part, b', cf inverted conical form, as shown clearly in iig. l.

B is a tube, which enters the lower end of the rectificator, A, and extends upward therein to a level with the upper end of' the part b', and'has a series of curved arms, c, attached, which approximate in form to a skeleton sphere, and support a biconical deflector, C, the

upper end of which reaches the level ofthe upper end of the pait b of the rectilicator.

Ifthe chimney is to be applied to a locomotive-boiler, the base of the pipe B should be about on a line with the top of the boiler.

D is a tube, which exceeds the diameter ofthe tube B, and is secured ou the top of' the rectiiicator, as plainly shown in iig. 1. y

And on the top of the tube D there is secured a spherical flame, E, encompassed by a wire grating, d, said frame having a biconical deflector, F, fitted in the centre of its topf Similar letters of reference indicate corresponding The radius of the frame E is equal to the diameter -of the tube D. The defiector F, at its centre, has a diameterequal to the radius of the4 tube D, and the delector C, at its centre, has a diameter equal to the radius of' the tube B.

The height ofthe chimney, and diameter ofthe tubes and rectificator, may vary, according to circumstances.

When the fire is kindled, the draught will be comparatively slight, but sufcient to cause a proper ignition of' the fuel, but as the rectificator becomes heated, the draught of course increases.

All the products of combustion7V when the re is rst.

lighted, pass up through the tube B, the ashes being directed, by the deector G,- against the sides ofthe iectificator, fall into the portion b', from which they can be removed, when desired, through the door G.

When'the heat in the rectificator increases, the pure carbon separates itself from the drawn-up ashes and iu' combustible gases, and completely fills the rectcator,

gradually increasing in volume until the pipe B is also filled; and, as this pipe joins the furnace, the pure carbon is, as it were, backed up into the latter, where it remains'so long as the heat is continued, so that the carbonic-oxide and other combustible gases are consumed within the furnace. u

The incombustible gases being lighter than pure carbon, pass through it, and escape through the pipe D. It will be understood that comparatively Alittle heat escapes upward from the recticator. The pressure of the cold air at the top ofthe chimuey is averted by the deflector F and wire grating el. Having thus described my invention, What I claim as new, and desire to secure by Letters Patent, ist The rectifcator, A, with the biconical deflector C at the lower part of the chimney, -in connection with the defiector li and spherical frame E, covered with an iron grating', ll, on the top of' the chimney, all constructed l. and arranged substantially as and for the purpose set forth. f

The above specification vof my invention signed by me, this 25th day of' April, 1868.

AUGUST 'WILHELMS. [L. s.]

Witnesses J. F. HERRICK, B. J.- CLAY. 

